---
schema_version: "secwatch.filing_event.v1"
accession: "0001537435-25-000012"
form_type: "8-K"
ticker: "TGEN"
cik: "0001537435"
company_name: "TECOGEN INC."
filed_at: "2025-03-03T23:59:59+00:00"
generated_at: "2026-05-25T17:37:09.656592+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Tecogen partners with Vertiv for data center cooling chillers; exclusive rights outside US

## Summary
- Vertiv gets exclusive rights to market Tecogen DTx Chillers for data center cooling outside US; non-exclusive within US.
- Two-year term starting March 1, 2025; parties to negotiate a definitive supply agreement.
- No minimum purchase obligation for Vertiv; Tecogen to provide volume discounts for significant orders.
- Vertiv can earn US exclusivity if it achieves agreed sales thresholds (Schedule A confidential).
- Agreement is non-binding except for specific provisions (exclusivity, confidentiality, termination).

## SEC filing metadata
- accession: 0001537435-25-000012
- form_type: 8-K
- ticker: TGEN
- cik: 0001537435
- company_name: TECOGEN INC.
- filed_at: 2025-03-03T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000012/0001537435-25-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000012/tgen-20250228.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001537435-25-000012
- JSON: https://secwatch.observer/filing/0001537435-25-000012.json
- Plain text: https://secwatch.observer/filing/0001537435-25-000012.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.